DC Biasing BJTs » Exercise – 2
51. ________ is less dependent on the transistor beta.
(a) Fixed bias
(b) Emitter bias
(c) Voltage divider
(d) Voltage feedback
52. A significant increase in leakage current due to increase in temperature creates ________between IB curves.
(a) smaller spacing
(b) larger spacing
(c) the same space as at lower temperature
(d) None of the above
53. In any amplifier employing a transistor, the collector current IC is sensitive to ________.
(a)
(b) VBE
(c) ICO
(d) All of the above
54. In a collector feedback bias circuit, the current through the collector resistor is ________ and the collector current is ________.
(a) IC, IC
(b) IB + IC, IC
(c) IB, IC
(d) None of the above
55. The ________the stability factor, the ________sensitive the network is to variations in that parameter.
(a) higher, more
(b) higher, less
(c) lower, more
(d) None of the above
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555555555552. A significant increase in leakage current due to increase in temperature creates ________between IB curves. (a) smaller spacing (b) larger spacing (c) the same space as at lower temperature (d) None of the above- 555555555553. In any amplifier employing a transistor, the collector current IC is sensitive to ________. (a) (b) VBE (c) ICO (d) All of the above
- 555555555554. In a collector feedback bias circuit, the current through the collector resistor is ________ and the collector current is ________. (a) IC, IC (b) IB + IC, IC (c) IB, IC (d) None of the above
- 555555555551. ________ is less dependent on the transistor beta. (a) Fixed bias (b) Emitter bias (c) Voltage divider (d) Voltage feedback
- 555555555538. For a transistor operating in the saturation region, the collector current IC is at its ________ and the collector-emitter voltage VCE is to the ________. (a) minimum, left of the line (b) minimum, right of the line (c) maximum, left of the line (d) maximum, right of the line